メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.419246258097 43.0089356963633, 144.41921549065 43.0089273476363, 144.418997017237 43.0084597983589, 144.418495368512 43.0073362484044, 144.417856024729 43.00587737734, 144.419202265155 43.0055329401909, 144.420039830714 43.0064053794597, 144.420983988435 43.0072509636911, 144.422140336709 43.0081456044397, 144.420885868027 43.0085065594233, 144.42033391216 43.0086697769147, 144.419797670594 43.0088004138341, 144.419246258097 43.0089356963633)) ^^http://www.opengis.net/ont/geosparql#wktLiteral